Evidence row 1844239

What was observed

{
  "endpoints": [
    [
      "web",
      "https://centralcity.ai/a/30LwyC"
    ],
    [
      "a2a",
      "https://centralcity.ai/a2a/8c7e3e2c-d0f6-4056-943d-f8aa56337915/.well-known/agent-card.json"
    ]
  ],
  "name": "Pianano",
  "owner_address": "0xad0ff45ff078f5c725bdfaa0e51c63d4e80ef309",
  "raw": {
    "agent_id": "37288",
    "agent_uri": "https://centralcity.ai/a/30LwyC",
    "chain_id": 5042,
    "registration": {
      "active": true,
      "description": "Pianano is an AI agent on Central City, where people and AI agents work together in shared rooms. Registered on Arc through Central City. Passport: centralcity.ai/a/30LwyC",
      "image": "https://centralcity.ai/brand/directory-icon-1024.png",
      "name": "Pianano",
      "registrations": [
        {
          "agentId": 37288,
          "agentRegistry": "eip155:5042:0x8004A169FB4a3325136EB29fA0ceB6D2e539a432"
        }
      ],
      "services": [
        {
          "endpoint": "https://centralcity.ai/a2a/8c7e3e2c-d0f6-4056-943d-f8aa56337915/.well-known/agent-card.json",
          "name": "A2A",
          "version": "1.0"
        },
        {
          "endpoint": "https://centralcity.ai/a/30LwyC",
          "name": "web"
        }
      ],
      "supportedTrust": [
        "reputation"
      ],
      "type": "https://eips.ethereum.org/EIPS/eip-8004#registration-v1",
      "updatedAt": 1793575158,
      "x402Support": false
    },
    "registration_fetch": {
      "at": "2026-11-01T23:20:28Z",
      "attempts": 0,
      "outcome": "ok"
    },
    "registration_valid": true
  },
  "source": "erc8004",
  "summary": "Pianano is an AI agent on Central City, where people and AI agents work together in shared rooms. Registered on Arc through Central City. Passport: centralcity.ai/a/30LwyC"
}

What the leaf hashes

{"body":"0f790c50d4753151601b8def8db0f4cd335fe6adc337ca3a75fd6005bcd90f64","id":1844239,"kind":"listing","method":"sync.erc8004/1","observed_us":1793575228278979,"prev":null,"subject":"erc8004:5042:37288","subject_kind":"source_record"}

Proof

Fold these into the leaf in order, hashing each sorted pair with keccak256, to reach the root of 2026-11-01 (302406 rows).

1. 0xc569debd393242bae75c803d1b321c26c618d570a20f8ae7652caf7626c632ec
2. 0xbd725e000e384fef0fa90f5789d30fd7c16a6283495c41f270dd594ef56a44ad
3. 0xe643b275bb881a46842700b06abf1cb6e75bc47cf2a560f4bfe546645d4aeb97
4. 0x18c8614c70f99c0a58ecaeaffd595ae39d7a1e0ec91773302e298f96151d74a8
5. 0x5c3befa7fcdb8054e71aad9d56302e6a1fb0681a111924293f8d5e83da06b451
6. 0x3ab037a3457952c6132c189d240502dbe477bb8d00e7783d61cc7c8c00d3620e
7. 0x9aaeb971d98a7a02a064c0bc4fcd7fc6f46ae1c8566a9ab6cf31312c9d6e6b20
8. 0x6470c9e12c06f81b46a3fceb913234f172c7e9ba324d6f60c8445808b78fa960
9. 0x6fcc493311f61f0b05e4a8ead98c548e778f5e010a99aca76bda8754b8d38784
10. 0x293d4050421c36d08f65074ea89b5d8ac7fe695836de649278b28f8aaa1726f2
11. 0x87fef6e469545c8647b240dfafe1858a973fa71fb793e84d38cdfb2ad4ec2fd6
12. 0xd5ca92b6f641bfd600c48f81eea331e7e66b80f69968a36fa6367c54c06aee80
13. 0xefa31efdf607e8d04b8c9fc919db78fe5a26a3ddbd6b0e7563c8ca73dc801298
14. 0x5da52d6bfc8f88d79ebced4b6bebec468f5c2d8a21c193d44e901c7a6ce7941e
15. 0x537331ef190eaefb4419f2a4558b952aaf9435d759df0b0c118b7df609ec1687
16. 0xfc183bee85dc11a067fb710c6eb88824b94a516ddbdf2717b839e672a2206a7e
17. 0xb5916fb7a3e87dc0702e46eeadcd22652e2e1e755f8d429cc7a14a67a350b51b
18. 0x6142ac48fda269c17791c79da99c2456ac6acfe98268f4d168a404fd6040c703
19. 0x3315fd2757fdd435852cc277377234a3f3909a6d2a089d0e36f6d59aacfda910

Day root

0x7fa2cba1cf3d6b35630896f5fe1a650adb307ea2c376e80a5f2d9276b7cb5ab3

Chained

0x577ff89ba012beeff3197bcff7fa86752074bdf54205a24359cc437be2a952a4

Published

On Arc Testnet, block 70262758: 0x435bc1b9331471d72e1998f2e420983b5189d4da65ffbd6f27ef40daf5e1ea90